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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-00-725-6639 (754774PC2)

NIIN: 00-725-6639
In stock
NSN: 5331-00-725-6639
FSC Code: 5331
MPN: 754774PC2

5331-00-490-4593 (754-4-37002-115)

NIIN: 00-490-4593
In stock
NSN: 5331-00-490-4593
FSC Code: 5331
MPN: 754437002115

5331-00-816-0015 (754-4-37002-112)

NIIN: 00-816-0015
In stock
NSN: 5331-00-816-0015
FSC Code: 5331
MPN: 754437002112

5331-01-061-0216 (754-4-37002-008)

NIIN: 01-061-0216
In stock
NSN: 5331-01-061-0216
FSC Code: 5331
MPN: 754437002008

5331-00-430-1734 (754-4-25183-111)

NIIN: 00-430-1734
In stock
NSN: 5331-00-430-1734
FSC Code: 5331
MPN: 754425183111

5331-00-430-1759 (754-4-25183-067)

NIIN: 00-430-1759
In stock
NSN: 5331-00-430-1759
FSC Code: 5331
MPN: 754425183067

5331-00-467-8306 (754-4-25183-069)

NIIN: 00-467-8306
In stock
NSN: 5331-00-467-8306
FSC Code: 5331
MPN: 754425183069

5331-00-420-8229 (754-4-24861-343)

NIIN: 00-420-8229
In stock
NSN: 5331-00-420-8229
FSC Code: 5331
MPN: 754424861343

5331-00-467-8275 (754-4-24782)

NIIN: 00-467-8275
In stock
NSN: 5331-00-467-8275
FSC Code: 5331
MPN: 754424782

5331-00-467-8155 (754-4-02408-007)

NIIN: 00-467-8155
In stock
NSN: 5331-00-467-8155
FSC Code: 5331
MPN: 754402408007

5331-01-305-6005 (7543876-001)

NIIN: 01-305-6005
In stock
NSN: 5331-01-305-6005
FSC Code: 5331
MPN: 7543876001

5331-01-305-6004 (7543864-001)

NIIN: 01-305-6004
In stock
NSN: 5331-01-305-6004
FSC Code: 5331
MPN: 7543864001

5331-01-305-6006 (7543877-001)

NIIN: 01-305-6006
In stock
NSN: 5331-01-305-6006
FSC Code: 5331
MPN: 7543877001

5331-00-467-8247 (754-2-24285)

NIIN: 00-467-8247
In stock
NSN: 5331-00-467-8247
FSC Code: 5331
MPN: 754224285

5331-00-479-9249 (7542-1)

NIIN: 00-479-9249
In stock
NSN: 5331-00-479-9249
FSC Code: 5331
MPN: 75421

5331-01-308-8106 (7536-139265)

NIIN: 01-308-8106
In stock
NSN: 5331-01-308-8106
FSC Code: 5331
MPN: 7536139265

5331-01-057-7502 (7534375-125S70)

NIIN: 01-057-7502
In stock
NSN: 5331-01-057-7502
FSC Code: 5331
MPN: 7534375125S70

5331-01-126-0839 (7-5-207-1)

NIIN: 01-126-0839
In stock
NSN: 5331-01-126-0839
FSC Code: 5331
MPN: 752071

5331-00-139-7188 (7519-36)

NIIN: 00-139-7188
In stock
NSN: 5331-00-139-7188
FSC Code: 5331
MPN: 751936

5331-01-320-9572 (751198-25)

NIIN: 01-320-9572
In stock
NSN: 5331-01-320-9572
FSC Code: 5331
MPN: 75119825

5331-01-320-9571 (751198-24)

NIIN: 01-320-9571
In stock
NSN: 5331-01-320-9571
FSC Code: 5331
MPN: 75119824

5331-01-320-9573 (751198-5)

NIIN: 01-320-9573
In stock
NSN: 5331-01-320-9573
FSC Code: 5331
MPN: 7511985

5331-01-093-9662 (751198-1)

NIIN: 01-093-9662
In stock
NSN: 5331-01-093-9662
FSC Code: 5331
MPN: 7511981

5331-01-320-9569 (751198-21)

NIIN: 01-320-9569
In stock
NSN: 5331-01-320-9569
FSC Code: 5331
MPN: 75119821

5331-01-094-0162 (751198-2)

NIIN: 01-094-0162
In stock
NSN: 5331-01-094-0162
FSC Code: 5331
MPN: 7511982

5331-01-320-9570 (751198-22)

NIIN: 01-320-9570
In stock
NSN: 5331-01-320-9570
FSC Code: 5331
MPN: 75119822

5331-01-569-8591 (350HN1348)

NIIN: 01-569-8591
In stock
NSN: 5331-01-569-8591
FSC Code: 5331
MPN: 350HN1348

5331-01-315-9546 (750X035-70BN)

NIIN: 01-315-9546
In stock
NSN: 5331-01-315-9546
FSC Code: 5331
MPN: 750X03570BN

5331-01-313-5692 (750758-29)

NIIN: 01-313-5692
In stock
NSN: 5331-01-313-5692
FSC Code: 5331
MPN: 75075829

5331-00-452-0554 (7507-215)

NIIN: 00-452-0554
In stock
NSN: 5331-00-452-0554
FSC Code: 5331
MPN: 7507215

5331-01-195-1508 (75064-2.5D449317)

NIIN: 01-195-1508
In stock
NSN: 5331-01-195-1508
FSC Code: 5331
MPN: 7506425D449317

5331-01-208-9797 (7504202AA)

NIIN: 01-208-9797
In stock
NSN: 5331-01-208-9797
FSC Code: 5331
MPN: 7504202AA

5331-00-467-8956 (7-50030-114)

NIIN: 00-467-8956
In stock
NSN: 5331-00-467-8956
FSC Code: 5331
MPN: 750030114

5331-01-126-4550 (7-5.224.1)

NIIN: 01-126-4550
In stock
NSN: 5331-01-126-4550
FSC Code: 5331
MPN: 752241

5331-01-361-8371 (34X3.5)

NIIN: 01-361-8371
In stock
NSN: 5331-01-361-8371
FSC Code: 5331
MPN: 34X35

5331-01-363-1571 (34R)

NIIN: 01-363-1571
In stock
NSN: 5331-01-363-1571
FSC Code: 5331
MPN: 34R

5331-99-801-6624 (H896-381351)

NIIN: 99-801-6624
In stock
NSN: 5331-99-801-6624
FSC Code: 5331
MPN: H896381351

5331-01-498-7055 (348-V)

NIIN: 01-498-7055
In stock
NSN: 5331-01-498-7055
FSC Code: 5331
MPN: 348V

5331-01-412-1727 (564-0151-802)

NIIN: 01-412-1727
In stock
NSN: 5331-01-412-1727
FSC Code: 5331
MPN: 5640151802

5331-01-342-0912 (348-0444-00)

NIIN: 01-342-0912
In stock
NSN: 5331-01-342-0912
FSC Code: 5331
MPN: 348044400

5331-01-520-6019 (347-8114)

NIIN: 01-520-6019
In stock
NSN: 5331-01-520-6019
FSC Code: 5331
MPN: 3478114

5331-15-119-8598 (347240P2)

NIIN: 15-119-8598
In stock
NSN: 5331-15-119-8598
FSC Code: 5331
MPN: 347240P2

5331-01-420-4530 (347-236-040-360-001)

NIIN: 01-420-4530
In stock
NSN: 5331-01-420-4530
FSC Code: 5331
MPN: 347236040360001

5331-15-119-8993 (347240P1)

NIIN: 15-119-8993
In stock
NSN: 5331-15-119-8993
FSC Code: 5331
MPN: 347240P1

5331-01-543-2964 (347/21304)

NIIN: 01-543-2964
In stock
NSN: 5331-01-543-2964
FSC Code: 5331
MPN: 34721304

5331-01-547-2321 (346583A1)

NIIN: 01-547-2321
In stock
NSN: 5331-01-547-2321
FSC Code: 5331
MPN: 346583A1

5331-01-529-9429 (3460-912P200A)

NIIN: 01-529-9429
In stock
NSN: 5331-01-529-9429
FSC Code: 5331
MPN: 3460912P200A

5331-01-529-9430 (3460-908P200A)

NIIN: 01-529-9430
In stock
NSN: 5331-01-529-9430
FSC Code: 5331
MPN: 3460908P200A